Home / 3,638.16-5,020.91-2,066.36

Finding the Fourth Proportional to 3,638.16, 5,020.91 and 2,066.36

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Solution

The fourth proportional to 3,638.16, 5,020.91 and 2,066.36 is: 2,851.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.16 : 5,020.91 = 2,066.36 : x
  2. Step 2: Convert to fraction form
    3,638.16/5,020.91 = 2,066.36/x
  3. Step 3: Cross multiply
    3,638.16x = 5,020.91 × 2,066.36
  4. Step 4: Simplify right side
    3,638.16x = 10,374,972.15
  5. Step 5: Solve for x
    x = 10,374,972.15/3,638.16
  6. Step 6: Final answer
    x = 2,851.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.